EP3148064A1 - Electronic control device - Google Patents
Electronic control device Download PDFInfo
- Publication number
- EP3148064A1 EP3148064A1 EP15796854.6A EP15796854A EP3148064A1 EP 3148064 A1 EP3148064 A1 EP 3148064A1 EP 15796854 A EP15796854 A EP 15796854A EP 3148064 A1 EP3148064 A1 EP 3148064A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- stepping
- voltage
- circuit
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000005674 electromagnetic induction Effects 0.000 abstract description 9
- 230000006698 induction Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/19—Monitoring patterns of pulse trains
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Definitions
- the present invention relates to a step-up circuit in an electronic control device.
- JP 2013-253530 A shows a background art.
- a step-up converter in a fuel injector repeats ON/OFF of a current between an upper and lower limit values of a threshold so as to maintain an average current constant by switching control. Also, when the current value reaches a certain value, the average current is maintained to be constant. Stepping up from start to the above certain value is performed at one time, not in a stepwise manner. According to the above, the higher the average current value to be maintained constant is, the larger the current fluctuation at the time when stepping up is started is. Accordingly, voltage changes in signal lines around the circuit is generated by electromagnetic induction. Also, when stepping up is stopped, the larger the average current value to be maintained constant is, the larger the current drop amount is. Therefore, similarly to the above, voltage changes in the signal lines around the circuit are generated by the electromagnetic induction. Since the voltage changes in the signal lines are not intended, there is a possibility that the voltage changes cause a circuit malfunction.
- JP 2012-159049 A shows another background art.
- a step-up switching element and a switching element for controlling fuel injection valve opening are concurrently turned ON in a fuel injector, and a current flown into the fuel injecting valve is increased from zero.
- the switching element of the step-up circuit is blocked.
- the current flown into the fuel injecting valve is continuously increased by the current supplied from the switching element for controlling the fuel injection valve opening due to a rise of a power source voltage and the like.
- the current exceeds the current upper limit threshold of a target current value, the current cannot be suppressed. Therefore, the current is stably retained by having a second current upper limit threshold.
- the step-up circuit for controlling the fuel injection valve opening according to PTL 3 controls the step-up voltage by using the current.
- the target current value increases in proportion to the target voltage.
- a desired voltage value is obtained by continuing to turn ON the step-up switching element until the current reaches the target current value. Therefore, since the fluctuation of the current flown into the step-up circuit gets larger when the target voltage value is set to be high, that is, when the target current value is set to be high, voltage changes caused by electromagnetic induction is generated in signal lines arranged around the step-up circuit. Since the voltage changes in the signal lines are not intended, there is a possibility that the voltage changes cause a circuit malfunction.
- a purpose of the present invention is to reduce voltage changes generated by electromagnetic induction caused by a rapid current fluctuation generated when stepping up is started and stopped and to reduce an effect of the voltage changes to a peripheral circuit.
- a purpose of the present invention can be achieved by controlling current values at the time of a current rise when stepping up is started and a current drop when stepping up is stopped in a stepwise manner.
- voltage changes generated by electromagnetic induction caused by a rapid current fluctuation generated when stepping up is started and stopped can be reduced and an effect of the voltage changes to a peripheral circuit can be reduced.
- a structure of a step-up circuit of a fuel injector driving circuit 10 according to the present embodiment is described with reference to FIG. 1 .
- a gate voltage Vg of a step-up driver 1 When a gate voltage Vg of a step-up driver 1 is turned ON, a current I is flown from a battery 2 to a GND via a shunt resistor 3, a step-up coil 4, and the step-up driver 1.
- the current at this time is detected by a voltage monitor 12 included in a step-up circuit driving unit 5 in a driver IC 9 as voltages on both sides of the shunt resistor 3.
- a step-up gate control circuit 11 turns OFF the step-up driver 1.
- an electromotive force of the step-up coil 4 flows the current I to a step-up diode 6.
- a step-up capacitor 7 temporarily stores the current flown into the diode.
- the step-up driver 1 is turned ON again to increase the current value. The repetition of the above operation continues the current flow into the step-up diode 6, and a step-up voltage is generated by storing the current in the step-up capacitor 7.
- a circuit 8 for monitoring the step-up voltage is included in the step-up circuit. The circuit 8 monitors the step-up voltage to perform stepping up when the voltage is low and to stop stepping up when the voltage reaches a predetermined value.
- Vg is a diagram of a waveform of a step-up operation. Characters of Vg represent a gate signal for turning ON the step-up driver 1.
- a drain voltage Vd of the step-up driver 1 is reduced to a value around zero V, and the current I increases.
- the gate signal Vg of the step-up driver 1 is turned OFF.
- the drain voltage Vd reaches a value close to the step-up voltage, and the current I is flown to the side of the step-up diode 6 and is stored in the step-up capacitor 7.
- the current value is decreased with lapse of time.
- the step-up driver 1 When the current value reaches the Min current which has been set, the step-up driver 1 is turned ON again. Therefore, the operation illustrated in FIG. 2 is performed by the repetition of this operation. This operation is performed until the step-up voltage reaches a set value.
- a hatched line area in FIG. 2 shows the current which is actually flown in the step-up diode 6, and this current is used to step up the voltage.
- the above operation makes the waveform of the step-up voltage in FIG. 2 .
- the step-up voltage When injection to a fuel driving valve is started, the step-up voltage is reduced until the step-up voltage reaches a peak current of a fuel injecting current. After reaching the peak current, the step-up voltage is not used. Therefore, the step-up voltage is gradually recovered by switching drive of the step-up circuit.
- a purpose of the present embodiment is to reduce a voltage fluctuation around the step-up circuit generated by electromagnetic induction caused by a current fluctuation by raising and dropping the current in a stepwise manner by using a plurality of final target current values and reducing the current fluctuation when a step-up current of the step-up coil is raised at the time when a fuel injecting current of a fuel injecting valve reaches the peak current and when the step-up current of the step-up coil is dropped after the step-up voltage has reached the predetermined value.
- FIG. 3 is a diagram to describe an embodiment according to claims 1 and 2 of the present invention.
- a current rise at the time when stepping up is started is controlled in a stepwise manner by varying ON/OFF Duty of a step-up switching element and a frequency.
- An inclination T of the current illustrated in FIG. 3 is determined based on characteristics of the circuit. Therefore, the target current value can be controlled by controlling ON/OFF time of the step-up switching element, that is, Duty and Cycle of the step-up switching element.
- a current value be increased to a target current value A by Duty_A1 and Cycle_A1 and the target current value A be maintained by Duty_A2 and Cycle_A2 for a certain time.
- stepping up at the second stage is performed by Duty_B1 and Cycle_B1
- stepping up at Nth stage is performed by Duty_N1 and Cycle_N1.
- FIGS. 4 and 5 are diagrams to describe an embodiment according to claims 3 and 4 of the present invention.
- step-up current thresholds (plural) 14 are illustrated in FIG. 4 .
- a plurality of Max current values, target current values, and Min current values illustrated in FIG. 2 are provided.
- a basic operation to step up is similar to that of the step-up circuit of the fuel injector driving circuit 10 described above.
- step-up current thresholds 14 in the electronic control device according to claim 1 at the time of the current rise and drop, illustrated in FIG. 2 , generated when stepping up is started and stopped, the current fluctuation caused until the current reaches the final target current is controlled in a stepwise manner at a plurality of times.
- a step-up current waveform in a case where stepping up is performed in a stepwise manner is illustrated in FIG. 5 .
- a step-up operation is started.
- the step-up gate control circuit 11 controls ON/OFF of the switching element of the step-up driver 1 so that an upper and lower limit thresholds of the current do not exceed the threshold when the upper and lower limit thresholds of the current exceed the threshold.
- stepping up is performed to a target value currents 2 and 3 in a stepwise manner. Then, stepping up is performed to the final target current value N.
- stepping up is stopped, similarly to the current rise at the time when stepping up is started, the current is retained and the voltage is reduced, which are caused by stepping up, repeatedly by using the plurality of target current values. Accordingly, the current is dropped in a stepwise manner.
- FIG. 6 is a diagram of an embodiment according to claims 5 and 6 of the present invention.
- the current profile at the time when the current is raised and dropped in a stepwise manner can be determined based on the retaining time of the target current value, the threshold of the target current value, and the number of set target values.
- a typical example of the current profile at the time when the current is raised and dropped is illustrated in FIG. 6 .
- An inclination by a circuit performance is represented by T
- the current is represented by y.
- the number of times of control at the time when stepping up is controlled is represented by m
- a target current value immediately before the current drop is started is represented by A.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Dc-Dc Converters (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
- The present invention relates to a step-up circuit in an electronic control device.
-
JP 2013-253530 A - In this patent literature, a step-up converter in a fuel injector repeats ON/OFF of a current between an upper and lower limit values of a threshold so as to maintain an average current constant by switching control. Also, when the current value reaches a certain value, the average current is maintained to be constant. Stepping up from start to the above certain value is performed at one time, not in a stepwise manner. According to the above, the higher the average current value to be maintained constant is, the larger the current fluctuation at the time when stepping up is started is. Accordingly, voltage changes in signal lines around the circuit is generated by electromagnetic induction. Also, when stepping up is stopped, the larger the average current value to be maintained constant is, the larger the current drop amount is. Therefore, similarly to the above, voltage changes in the signal lines around the circuit are generated by the electromagnetic induction. Since the voltage changes in the signal lines are not intended, there is a possibility that the voltage changes cause a circuit malfunction.
- Also, for example,
JP 2012-159049 A -
- PTL 1:
JP 2013-253530 A - PTL 2:
JP 2012-159049 A - PTL 3:
JP 2008-169762 A - The step-up circuit for controlling the fuel injection valve opening according to
PTL 3 controls the step-up voltage by using the current. The target current value increases in proportion to the target voltage. Also, a desired voltage value is obtained by continuing to turn ON the step-up switching element until the current reaches the target current value. Therefore, since the fluctuation of the current flown into the step-up circuit gets larger when the target voltage value is set to be high, that is, when the target current value is set to be high, voltage changes caused by electromagnetic induction is generated in signal lines arranged around the step-up circuit. Since the voltage changes in the signal lines are not intended, there is a possibility that the voltage changes cause a circuit malfunction. - A purpose of the present invention is to reduce voltage changes generated by electromagnetic induction caused by a rapid current fluctuation generated when stepping up is started and stopped and to reduce an effect of the voltage changes to a peripheral circuit.
- For example, a purpose of the present invention can be achieved by controlling current values at the time of a current rise when stepping up is started and a current drop when stepping up is stopped in a stepwise manner.
- According to the present invention, voltage changes generated by electromagnetic induction caused by a rapid current fluctuation generated when stepping up is started and stopped can be reduced and an effect of the voltage changes to a peripheral circuit can be reduced.
-
- [
FIG. 1] FIG. 1 is a block diagram of a circuit for generating a step-up voltage. - [
FIG. 2] FIG. 2 is a diagram of a voltage waveform and a current waveform when the step-up voltage is generated. - [
FIG. 3] FIG. 3 is a diagram of a step-up current waveform in a case where stepping up is performed in a stepwise manner according toclaim 2. - [
FIG. 4] FIG. 4 is a diagram of a structure of a step-up circuit according toclaim 3. - [
FIG. 5] FIG. 5 is a diagram of a step-up current waveform in a case where stepping up is performed in a stepwise manner according toclaim 3. - [
FIG. 6] FIG. 6 is a diagram of a current profile of a current rise and drop in a stepwise manner. - Embodiments of the present invention will be described in detail below with reference to the drawings.
- A structure of a step-up circuit of a fuel
injector driving circuit 10 according to the present embodiment is described with reference toFIG. 1 . When a gate voltage Vg of a step-updriver 1 is turned ON, a current I is flown from abattery 2 to a GND via ashunt resistor 3, a step-upcoil 4, and the step-updriver 1. The current at this time is detected by avoltage monitor 12 included in a step-upcircuit driving unit 5 in adriver IC 9 as voltages on both sides of theshunt resistor 3. When the Max current threshold which has been set is detected, a step-upgate control circuit 11 turns OFF the step-updriver 1. At this time, an electromotive force of the step-upcoil 4 flows the current I to a step-updiode 6. A step-upcapacitor 7 temporarily stores the current flown into the diode. Next, when the current flown into theshunt resistor 3 is reduced, the step-updriver 1 is turned ON again to increase the current value. The repetition of the above operation continues the current flow into the step-updiode 6, and a step-up voltage is generated by storing the current in the step-upcapacitor 7. Also, acircuit 8 for monitoring the step-up voltage is included in the step-up circuit. Thecircuit 8 monitors the step-up voltage to perform stepping up when the voltage is low and to stop stepping up when the voltage reaches a predetermined value.FIG. 2 is a diagram of a waveform of a step-up operation. Characters of Vg represent a gate signal for turning ON the step-updriver 1. When the gate signal Vg is turned ON, a drain voltage Vd of the step-updriver 1 is reduced to a value around zero V, and the current I increases. When the current I reaches the Max current, which has been set, relative to the target current value, the gate signal Vg of the step-updriver 1 is turned OFF. At this time, the drain voltage Vd reaches a value close to the step-up voltage, and the current I is flown to the side of the step-updiode 6 and is stored in the step-upcapacitor 7. However, the current value is decreased with lapse of time. When the current value reaches the Min current which has been set, the step-updriver 1 is turned ON again. Therefore, the operation illustrated inFIG. 2 is performed by the repetition of this operation. This operation is performed until the step-up voltage reaches a set value. A hatched line area inFIG. 2 shows the current which is actually flown in the step-up diode 6, and this current is used to step up the voltage. The above operation makes the waveform of the step-up voltage inFIG. 2 . When injection to a fuel driving valve is started, the step-up voltage is reduced until the step-up voltage reaches a peak current of a fuel injecting current. After reaching the peak current, the step-up voltage is not used. Therefore, the step-up voltage is gradually recovered by switching drive of the step-up circuit. When the gate signal Vg is turned OFF, the current flows into the step-up capacitor, and the step-up voltage increases. When the gate signal Vg is turned ON, the current is not flown into the step-up capacitor. Therefore, the step-up voltage does not increase (slightly reduced due to natural discharge). By repeating the above operation, stepping up by Vg switching is performed until the step-up voltage reaches a predetermined value. - A purpose of the present embodiment is to reduce a voltage fluctuation around the step-up circuit generated by electromagnetic induction caused by a current fluctuation by raising and dropping the current in a stepwise manner by using a plurality of final target current values and reducing the current fluctuation when a step-up current of the step-up coil is raised at the time when a fuel injecting current of a fuel injecting valve reaches the peak current and when the step-up current of the step-up coil is dropped after the step-up voltage has reached the predetermined value.
-
FIG. 3 is a diagram to describe an embodiment according toclaims FIG. 3 , a current rise at the time when stepping up is started is controlled in a stepwise manner by varying ON/OFF Duty of a step-up switching element and a frequency. An inclination T of the current illustrated inFIG. 3 is determined based on characteristics of the circuit. Therefore, the target current value can be controlled by controlling ON/OFF time of the step-up switching element, that is, Duty and Cycle of the step-up switching element. For example, when stepping up is performed to a final target current value N in a stepwise manner, in order to perform stepping up to a target current at the first stage, it is preferable that a current value be increased to a target current value A by Duty_A1 and Cycle_A1 and the target current value A be maintained by Duty_A2 and Cycle_A2 for a certain time. Similarly to the above, stepping up at the second stage is performed by Duty_B1 and Cycle_B1, and stepping up at Nth stage is performed by Duty_N1 and Cycle_N1. By varying Duty and Cycle of the step-up switching element at a plurality of times as described above, the current can be raised at the time when stepping up is started in a stepwise manner. Similarly to the above, when the current is dropped in a stepwise manner when stepping up is stopped, the current can be dropped in a stepwise manner by varying Duty and Cycle of the step-up switching element at a plurality of times. -
FIGS. 4 and5 are diagrams to describe an embodiment according toclaims FIG. 1 , step-up current thresholds (plural) 14 are illustrated inFIG. 4 . According to this, a plurality of Max current values, target current values, and Min current values illustrated inFIG. 2 are provided. A basic operation to step up is similar to that of the step-up circuit of the fuelinjector driving circuit 10 described above. However, by having a plurality of step-upcurrent thresholds 14 in the electronic control device according toclaim 1, at the time of the current rise and drop, illustrated inFIG. 2 , generated when stepping up is started and stopped, the current fluctuation caused until the current reaches the final target current is controlled in a stepwise manner at a plurality of times. A step-up current waveform in a case where stepping up is performed in a stepwise manner is illustrated inFIG. 5 . At the timing when the injection to the fuel driving valve is started, a step-up operation is started. Based on the voltage detected by the voltage monitor 12 and information which has been previously set to the targetcurrent value 1 of the step-up current thresholds (plural) 14, in order to retain the current of the targetcurrent value 1, the step-upgate control circuit 11 controls ON/OFF of the switching element of the step-updriver 1 so that an upper and lower limit thresholds of the current do not exceed the threshold when the upper and lower limit thresholds of the current exceed the threshold. After the current of the target value current 1 has been retained for a certain time, by using the method similarly to the above, stepping up is performed to atarget value currents -
FIG. 6 is a diagram of an embodiment according toclaims FIG. 6 . An inclination by a circuit performance is represented by T, and the current is represented by y. The number of times of control at the time when stepping up is controlled is represented by m, and a target current value immediately before the current drop is started is represented by A. In this case, it can be considered that y = T × m2, y = T × m, and y = T × √m be satisfied when the current is raised and y = A - T × m2, y = A - T × m, and y = A - T × √m be satisfied when the current is dropped. -
- 1
- step-up driver
- 2
- battery
- 3
- shunt resistor
- 4
- step-up coil
- 5
- step-up circuit driving unit
- 6
- step-up diode
- 7
- step-up capacitor
- 8
- circuit for monitoring step-up voltage
- 9
- driver IC
- 10
- fuel injector driving circuit
- 11
- step-up gate control circuit
- 12
- voltage monitor
- 14
- step-up current threshold table (plural)
- 15
- counter circuit
- 16
- time threshold table
Claims (6)
- An electronic control device comprising:a step-up switching element, a coil, and a diode configured to generate a step-up voltage; anda capacitor mounted to store the step-up voltage, whereincurrent values at the time of a current rise when stepping up is started and a current drop when stepping up is stopped are controlled in a stepwise manner.
- The electronic control device according to claim 1, wherein
the current values at the time of the current rise when stepping up is started and the current drop when stepping up is stopped are controlled in a stepwise manner by varying ON/OFF Duty of the step-up switching element and a frequency. - The electronic control device according to claim 1, comprising:a current monitor circuit configured to perform current control to step up, whereina plurality of target current values to control stepping up is provided, andthe current values at the time of the current rise when stepping up is started and the current drop when stepping up is stopped are controlled in a stepwise manner.
- The electronic control device according to claim 3, wherein
an upper and lower limit thresholds of the current are provided relative to the plurality of target current values, and
when the current exceeds the threshold, the step-up switching element retains and controls the current so that the current does not exceed the threshold immediately. - The electronic control device according to claim 3, wherein
a current profile at the time of the current rise in a stepwise manner is varied based on a retaining time to retain and control the current according to claim 4 and the plurality of target current values according to claim 3. - The electronic control device according to claim 3, wherein
a current profile at the time of the current drop in a stepwise manner is varied based on a retaining time to retain and control the current according to claim 4 and the plurality of target current values according to claim 3.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014106641 | 2014-05-23 | ||
PCT/JP2015/063157 WO2015178199A1 (en) | 2014-05-23 | 2015-05-07 | Electronic control device |
Publications (3)
Publication Number | Publication Date |
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EP3148064A1 true EP3148064A1 (en) | 2017-03-29 |
EP3148064A4 EP3148064A4 (en) | 2018-07-18 |
EP3148064B1 EP3148064B1 (en) | 2021-03-10 |
Family
ID=54553872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15796854.6A Active EP3148064B1 (en) | 2014-05-23 | 2015-05-07 | Electronic control device |
Country Status (5)
Country | Link |
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US (1) | US10122267B2 (en) |
EP (1) | EP3148064B1 (en) |
JP (1) | JP6306695B2 (en) |
CN (1) | CN106416033B (en) |
WO (1) | WO2015178199A1 (en) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002176767A (en) | 2000-12-11 | 2002-06-21 | Fujitsu General Ltd | Control method of compressor |
JP3651460B2 (en) * | 2002-09-03 | 2005-05-25 | 横河電機株式会社 | DC-DC converter |
JP4328710B2 (en) | 2004-11-15 | 2009-09-09 | 埼玉日本電気株式会社 | Boost DC / DC converter |
JP4474423B2 (en) | 2007-01-12 | 2010-06-02 | 日立オートモティブシステムズ株式会社 | Internal combustion engine control device |
JP2009005432A (en) * | 2007-06-19 | 2009-01-08 | Kayaba Ind Co Ltd | Power supply system |
JP4325710B2 (en) * | 2007-07-13 | 2009-09-02 | 株式会社デンソー | Boost power supply |
JP5169391B2 (en) * | 2008-04-01 | 2013-03-27 | 日産自動車株式会社 | Control device and control method for power conversion device |
JP5109775B2 (en) * | 2008-04-11 | 2012-12-26 | 富士電機株式会社 | Switching power supply |
JP2011010380A (en) | 2009-06-23 | 2011-01-13 | Aisin Aw Co Ltd | Dc power converter |
JP5233874B2 (en) | 2009-06-29 | 2013-07-10 | 株式会社デンソー | Buck-boost converter |
JP5470294B2 (en) | 2011-02-02 | 2014-04-16 | 日立オートモティブシステムズ株式会社 | Injector drive circuit |
JP5576818B2 (en) * | 2011-03-22 | 2014-08-20 | パナソニック株式会社 | Lighting device and lighting fixture using the same |
JP5396446B2 (en) * | 2011-08-30 | 2014-01-22 | 日立オートモティブシステムズ株式会社 | In-vehicle power supply |
JP5880296B2 (en) | 2012-06-06 | 2016-03-08 | 株式会社デンソー | Drive device for fuel injection valve |
JP5874607B2 (en) * | 2012-11-05 | 2016-03-02 | 株式会社デンソー | Fuel injection control device and fuel injection system |
-
2015
- 2015-05-07 US US15/313,270 patent/US10122267B2/en active Active
- 2015-05-07 EP EP15796854.6A patent/EP3148064B1/en active Active
- 2015-05-07 WO PCT/JP2015/063157 patent/WO2015178199A1/en active Application Filing
- 2015-05-07 CN CN201580026908.2A patent/CN106416033B/en active Active
- 2015-05-07 JP JP2016521023A patent/JP6306695B2/en active Active
Also Published As
Publication number | Publication date |
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US10122267B2 (en) | 2018-11-06 |
US20170201172A1 (en) | 2017-07-13 |
CN106416033A (en) | 2017-02-15 |
CN106416033B (en) | 2019-06-04 |
EP3148064A4 (en) | 2018-07-18 |
JPWO2015178199A1 (en) | 2017-04-20 |
EP3148064B1 (en) | 2021-03-10 |
WO2015178199A1 (en) | 2015-11-26 |
JP6306695B2 (en) | 2018-04-04 |
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